ILLINOIS CDL AIR BRAKES PRACTICE TEST
16.
When driving a 60 foot truck at 35 mph in ideal conditions, you should keep at least _______ of space in front of you.
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5 seconds
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6 seconds
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4 seconds
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12 seconds
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17.
Controlled braking:
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must be used when you need to turn sharply while braking.
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can be used to keep your vehicle in a straight line and allow you to turn if necessary.
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involves locking the wheels and then releasing the brakes.
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involves pumping the brakes while keeping steering wheel movements very small.
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18.
When the spring brakes are on, you should push the brake pedal down:
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Only when approaching railroad-highway crossings.
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Only when driving uphill.
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Never.
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Only when driving downhill.
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19.
If your tires are hot, you should NOT:
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drive until you correct the cause of the overheating.
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once the tires have cooled down, make another stop to check the tires.
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let air out of the tires so the pressure goes back to normal.
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stop to let the tires cool down.
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20.
A low air pressure warning signal is required on:
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all vehicles with air brakes built after 2009.
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Warning signals are optional.
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all vehicles with air brakes.
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all vehicles with air brakes built after 2005.
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